The Marshall Wall West and East climbs are located in the northwestern corner of Marin County and are quite rural and remote. The landscape is almost exclusively rugged pastureland with some views of the Pacific Ocean and Marin County's Arroyo Sausal Reservoir. The climbs can easily be fit into 50 mile or less loops that begin in Novato or Petaluma, with the mid-point from either start the quaint coastal town of Point Reyes Station.
Do not seek these climbs out for a significant challenge as the term "Wall" to describe these ascents is a bit of a misnomer as the Marshall Walls are tame by comparison to other more appropriately named climbs in the North Bay such as Rancheria and Pine Flat Walls)
Traffic/Roadway surface: There is very little traffic along this rural narrow two lane roadway, but you may encounter very large milk transport trucks (slideshow, above) - this is dairy country, after all! As with most of the Marin County roads, this one is in great shape.